docs: def seek_realtime(self, realtime):
          """Seek to a matching journal entry nearest to `timestamp` time.
  
          Argument `realtime` must be either an integer UNIX timestamp (in
          microseconds since the beginning of the UNIX epoch), or an float UNIX
          timestamp (in seconds since the beginning of the UNIX epoch), or a
          datetime.datetime instance. The integer form is deprecated.
  
          >>> import time
          >>> from systemd import journal
  
          >>> yesterday = time.time() - 24 * 60**2
          >>> j = journal.Reader()
          >>> j.seek_realtime(yesterday)
          """
          if isinstance(realtime, _datetime.datetime):
              realtime = int(float(realtime.strftime("%s.%f")) * 1000000)
          elif not isinstance(realtime, int):
              realtime = int(realtime * 1000000)
          return super(Reader, self).seek_realtime(realtime)